wan-2-2/vace-fun
Prompt-based animating with subject fidelity and smooth motion.
Seedance 2.5 is ByteDance Seed's next-generation multimodal text-to-video model. It turns scene descriptions and optional references into short cinematic clips, focusing on more accurate editing, more consistent characters, and steadier quality when a shot is extended or stitched.
Note: Seedance 2.5 is coming soon. While its public API is being finalized, this page previews the Seedance 2.5 experience, and generation currently runs on Seedance 2.0 Pro. The live input fields, ranges, and limits below reflect the Seedance 2.0 Pro model that powers generation today.
Seedance 2.5 focuses on quality, control, and compliance upgrades over earlier releases:
Inputs match the RunComfy OpenAPI Input schema for this template (generation currently powered by Seedance 2.0 Pro while Seedance 2.5 is finalized).
| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
| prompt* | Yes (*) | string | — | CN ~≤500 chars, EN ~≤1000 words rec. | Text prompt for the video |
| images | No | array (image URIs) | [] | 0–9 | jpeg, png, webp, bmp, tiff, gif |
| videos | No | array (video URIs) | [] | 0–3 | mp4, mov; duration 2–15 s per clip |
| audios | No | array (audio URIs) | [] | 0–3 | wav, mp3; 2–15 s, < 15 MB |
| aspect_ratio | No | string | adaptive | adaptive, 16:9, 9:16, 4:3, 3:4, 1:1, 21:9 | Adaptive: model picks closest ratio; check task result for actual ratio |
| duration | No | integer | 5 | 4–15 (seconds) | Clip length in whole seconds |
| resolution | No | string | 720p | 480p, 720p, 1080p, 4k | Output resolution preset |
| generate_audio | No | boolean | true | true / false | When true, outputs video with synchronized audio (speech, SFX, music) |
| seed | No | integer | — | — | Random seed for video generation |
| tools | No | boolean | false | true / false | When enabled, the model may run an online search per prompt |
Seedance 2.5 is coming soon; generation currently runs on Seedance 2.0 Pro at these rates, billed per second of generated video:
1) Describe your scene — Give Seedance 2.5 a clear picture of subject, action, setting, mood, lighting, and camera. For prompt length, Chinese ~≤500 characters or English ~≤1000 words is recommended.
2) Add references (optional) — Upload images for look or identity, and add short reference videos or audio. Respect the duration and file-size limits for each modality.
3) Choose aspect ratio — Use adaptive for exploration, or a fixed ratio (for example 9:16 or 16:9) for a known deliverable.
4) Set duration — Any integer from 4 to 15 seconds on the current model.
5) Pick resolution — 480p for fast drafts, 720p for a balanced default, 1080p for high detail, or 4K for the sharpest output.
6) Generate audio — Leave enabled for dialogue, SFX, or music; disable it when you only need silent video.
7) Optional seed — Fix the seed while iterating so changes come from prompt or references, not randomness.
8) Generate and iterate — Refine wording, swap references, or adjust ratio, duration, and resolution, then preview the Seedance 2.5 experience.
These tips help you get more predictable results from Seedance 2.5.
In short, Seedance 2.5 is coming soon on RunComfy; today the page previews it while generation runs on Seedance 2.0 Pro with text plus optional image, video, and audio references, 4–15 s clips, 480p–4K presets, and optional native audio.
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Seedance 2.5 is coming soon. This page previews the Seedance 2.5 model while its public API is finalized, and generation currently runs on Seedance 2.0 Pro. That means the live input fields and limits reflect Seedance 2.0 Pro until the Seedance 2.5 backend is switched on.
Seedance 2.5 is a multimodal text-to-video model from ByteDance Seed that turns prompts and optional image, video, and audio references into short cinematic clips. It targets ad creative, film previsualization, and branded storytelling where reference consistency and native audio matter.
Seedance 2.5 focuses on more accurate video editing, stronger reference consistency, and steadier quality when a clip is extended or stitched. It also aims to follow negative and timestamp-style instructions more reliably, improve multi-language results, and reduce duplicate-character artifacts and stray watermarks.
Yes. When audio generation is enabled (the current default), the model can output video with synchronized speech, SFX, and music, which supports lip-synced clips. You can disable it if you only need silent video. Lip-sync quality still depends on prompt clarity and the scene you describe.
Reference consistency is a core focus of Seedance 2.5. In practice, reference images plus a clear prompt help anchor identity, wardrobe, and tone across frames. On the current model powering this page you can attach reference images, videos, and audio within the supported limits to reinforce consistency.
On the model currently powering this page, prompts are recommended at Chinese ~≤500 characters or English ~≤1000 words. You can attach up to 9 reference images, 3 reference videos (2–15 seconds each), and 3 reference audio clips (2–15 seconds, under 15 MB). Only the prompt is required. Check the live parameter panel, since limits will change once Seedance 2.5 goes live.
Resolution options are 480p, 720p (default), 1080p, and 4K. Aspect ratio can be adaptive (default, where the model picks the closest ratio) or fixed at 16:9, 9:16, 4:3, 3:4, 1:1, or 21:9. Duration is a whole number of seconds from 4 to 15 on the current model, with default 5.
Prototype in the RunComfy model UI, then call the same model through the RunComfy API using identical Input fields (prompt, images, videos, audios, aspect_ratio, duration, resolution, generate_audio, seed). Validate prompts and media limits in the UI first, then use your account API key and credits for automated jobs.
Generations consume credits based on the generated video duration on the model currently powering this page: $0.11 per second for 480p, $0.24 per second for 720p, $0.55 per second for 1080p, and $1.20 per second for 4K. See the Generation section on this page for live pricing, which will update when Seedance 2.5 launches.
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